You will need a wet vac. Make up a solution of about 5ltrs with 1-2% Surfex HD in water. Apply with a sponge, really saturate the area and vac off while wet. Repeat this process with the made-up solution and this will remove the dirt.
Award-Winning Products
Our Double Speed-Wax has won the “best wax and sealant” award in the Auto-Express magazine product awards for the last 4 years, winning 5 years in total. Auto-Wheel has come in first in the wheel cleaner category for the last 9 years. Tested extensively by us in development stages, our products come out on top in testing and reviews, across the range.
Bilt-Hamber Laboratories has always used research, innovative chemistry and thorough testing as the way to produce better performing products.
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Swift House, Ground Floor
18 Hoffmanns Way
Chelmsford, Essex, CM1 1GU
Registered office address only, product collection is not possible from this site. Visits by appointment only.
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Registered in England. Company registration number: 06211221. VAT no: GB944296300